7) Consider the following reaction: CaCO3(s)→CaO(s)+CO2(g). Estimate ΔG∘ for this reaction at each of the following temperatures. (Assume that ΔH∘ and ΔS∘ do not change too much within the given temperature range.) part a) 300 K part b) 1055 K part c)1480 K 8) Determine ΔG∘ for the following reaction: 2NO(g)+O2(g)→N2O4(g) Use the following reactions with known ΔG∘rxn values: N2O4(g)→2NO2(g), ΔG∘rxn = 2.8 kJ NO(g)+12O2(g)→NO2(g), ΔG∘rxn = – 36.3 kJ

7) Consider the following reaction:
CaCO3(s)→CaO(s)+CO2(g).
Estimate ΔG∘ for this reaction at each of the following temperatures. (Assume that ΔH∘ and ΔS∘ do not change too much within the given temperature range.)
part a) 300 K
part b) 1055 K
part c)1480 K

8) Determine ΔG∘ for the following reaction:

2NO(g)+O2(g)→N2O4(g)

Use the following reactions with known ΔG∘rxn values:

N2O4(g)→2NO2(g), ΔG∘rxn = 2.8 kJ
NO(g)+12O2(g)→NO2(g), ΔG∘rxn = – 36.3 kJ

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